Is a disturbance typically affecting about 10 km2 and recovery time of about 20 years. [succession]
a. lightning b. oil spill c. atomic bomb d. choices b and c e. none of a, b, or c

Ahis which describe the horizons in a soil profile? check all that apply. horizon a is mineral deficient. bedrock lies below the soil layers. te horizon o forms from organic material, horizon b undergoes the least amount of change. horizon c is least affected by the soil formation process.